yiliangyiyun-app/util/ble/tsc.js

var app = getApp();
var encode = require("./encoding.js");
var jpPrinter = {　　　　
  createNew: function() {　　　　　　
    var jpPrinter = {};
    var data = "";
    var command = []

    jpPrinter.name = "蓝牙打印机";

    jpPrinter.init = function() {};

    jpPrinter.addCommand = function(content) { //将指令转成数组装起
      var code = new encode.TextEncoder(
        'gb18030', {
          NONSTANDARD_allowLegacyEncoding: true
        }).encode(content)
      for (var i = 0; i < code.length; ++i) {
        command.push(code[i])
      }
    }

    jpPrinter.setSize = function(pageWidght, pageHeight) { //设置页面大小
      data = "SIZE " + pageWidght.toString() + " mm" + "," + pageHeight.toString() + " mm" + "\r\n";
      jpPrinter.addCommand(data)
    };

    jpPrinter.setSpeed = function(printSpeed) { //设置打印机速度
      data = "SPEED " + printSpeed.toString() + "\r\n";
      jpPrinter.addCommand(data)
    };

    jpPrinter.setDensity = function(printDensity) { //设置打印机浓度
      data = "DENSITY " + printDensity.toString() + "\r\n";
      jpPrinter.addCommand(data)
    };

    jpPrinter.setGap = function(printGap) { //传感器
      data = "GAP " + printGap.toString() + " mm,0 mm\r\n";
      jpPrinter.addCommand(data)
    };

    jpPrinter.setBline = function(printBline) { //黑标纸
      data = "BLINE " + printBline.toString() + " mm,0 mm\r\n";
      jpPrinter.addCommand(data)
    };

    jpPrinter.setCountry = function(country) { //选择国际字符集
      /*
      001:USA
      002:French
      003:Latin America
      034:Spanish
      039:Italian
      044:United Kingdom
      046:Swedish
      047:Norwegian
      049:German
       */
      data = "COUNTRY " + country + "\r\n";
      jpPrinter.addCommand(data)
    };

    jpPrinter.setCodepage = function(codepage) { //选择国际代码页
      /*
      8-bit codepage 字符集代表
      437:United States
      850:Multilingual
      852:Slavic
      860:Portuguese
      863:Canadian/French
      865:Nordic
      Windows code page
      1250:Central Europe
      1252:Latin I
      1253:Greek
      1254:Turkish
      以下代码页仅限于 12×24 dot 英数字体
      WestEurope:WestEurope
      Greek:Greek
      Hebrew:Hebrew
      EastEurope:EastEurope
      Iran:Iran
      IranII:IranII
      Latvian:Latvian
      Arabic:Arabic
      Vietnam:Vietnam
      Uygur:Uygur
      Thai:Thai
      1252:Latin I
      1257:WPC1257
      1251:WPC1251
      866:Cyrillic
      858:PC858
      747:PC747
      864:PC864
      1001:PC100
      */
      data = "CODEPAGE " + codepage + "\r\n";
      jpPrinter.addCommand(data)
    }

    jpPrinter.setCls = function() { //清除打印机缓存
      data = "CLS\r\n";
      jpPrinter.addCommand(data)
    };

    jpPrinter.setFeed = function(feed) { //将纸向前推出n
      data = "FEED " + feed + "\r\n";
      jpPrinter.addCommand(data)
    };

    jpPrinter.setBackFeed = function(backup) { //将纸向后回拉n
      data = "BACKFEED " + backup + "\r\n";
      jpPrinter.addCommand(data)
    }

    jpPrinter.setDirection = function(direction) { //设置打印方向，参考编程手册  
      data = "DIRECTION " + direction + "\r\n";
      jpPrinter.addCommand(data)
    };

    jpPrinter.setReference = function(x, y) { //设置坐标原点，与打印方向有关
      data = "REFERENCE " + x + "," + y + "\r\n";
      jpPrinter.addCommand(data)
    };

    jpPrinter.setFromfeed = function() { //根据Size进一张标签纸
      data = "FORMFEED\r\n";
      jpPrinter.addCommand(data)
    };

    jpPrinter.setHome = function() { //根据Size找到下一张标签纸的位置
      data = "HOME\r\n";
      jpPrinter.addCommand(data)
    };

    jpPrinter.setSound = function(level, interval) { //控制蜂鸣器
      data = "SOUND " + level + "," + interval + "\r\n";
      jpPrinter.addCommand(data)
    };

    jpPrinter.setLimitfeed = function(limit) { // 检测垂直间距
      data = "LIMITFEED " + limit + "\r\n";
      jpPrinter.addCommand(data)
    };

    jpPrinter.setBar = function(x, y, width, height) { //绘制线条
      data = "BAR " + x + "," + y + "," + width + "," + height + "\r\n"
      jpPrinter.addCommand(data)
    };

    jpPrinter.setBox = function(x_start, y_start, x_end, y_end, thickness) { //绘制方框
      data = "BOX " + x_start + "," + y_start + "," + x_end + "," + y_end + "," + thickness + "\r\n";
      jpPrinter.addCommand(data)
    };

    jpPrinter.setErase = function(x_start, y_start, x_width, y_height) { //清除指定区域的数据
      data = "ERASE " + x_start + "," + y_start + "," + x_width + "," + y_height + "\r\n";
      jpPrinter.addCommand(data)
    };

    jpPrinter.setReverse = function(x_start, y_start, x_width, y_height) { //将指定的区域反相打印
      data = "REVERSE " + x_start + "," + y_start + "," + x_width + "," + y_height + "\r\n";
      jpPrinter.addCommand(data)
    };

    jpPrinter.setText = function(x, y, font, x_, y_, str) { //打印文字
      data = "TEXT " + x + "," + y + ",\"" + font + "\"," + 0 + "," + x_ + "," + y_ + "," + "\"" + str + "\"\r\n"
      jpPrinter.addCommand(data)
    };

    jpPrinter.setQR = function(x, y, level, width, mode, content) { //打印二维码
      data = "QRCODE " + x + "," + y + "," + level + "," + width + "," + mode + "," + 0 + ",\"" + content + "\"\r\n"
      jpPrinter.addCommand(data)
    };

    jpPrinter.setBarCode = function(x, y, codetype, height, readable, narrow, wide, content) { //打印条形码
      data = "BARCODE " + x + "," + y + ",\"" + codetype + "\"," + height + "," + readable + "," + 0 + "," + narrow + "," + wide + ",\"" + content + "\"\r\n"
      jpPrinter.addCommand(data)
    };

    jpPrinter.setBitmap = function(x, y, mode, res) { //添加图片，res为画布参数
      console.log(res)
      var width = parseInt((res.width + 7) / 8 * 8 / 8)
      var height = res.height;
      var time = 1;
      var temp = res.data.length - width * 32;
      var pointList = []
      var inverted_Data = []
      var correct_Data = []
      console.log(width + "--" + height)
      data = "BITMAP " + x + "," + y + "," + width + "," + height + "," + mode + ","
      jpPrinter.addCommand(data)
      for (var i = 0; i < height; ++i) {
        console.log(temp)
        for (var j = 0; j < width; ++j) {
          for (var k = 0; k < 32; k += 4) {
            if (res.data[temp] == 0 && res.data[temp + 1] == 0 && res.data[temp + 2] == 0 && res.data[temp + 3] == 0) {
              pointList.push(1)
            } else {
              pointList.push(0)
            }
            temp += 4
          }
        }
        time++
        temp = res.data.length - width * 32 * time
      }
      for (var i = 0; i < pointList.length; i += 8) {
        var p = pointList[i] * 128 + pointList[i + 1] * 64 + pointList[i + 2] * 32 + pointList[i + 3] * 16 + pointList[i + 4] * 8 + pointList[i + 5] * 4 + pointList[i + 6] * 2 + pointList[i + 7]
        inverted_Data.push(p)
        correct_Data.push(p)
      }
      for (var i = height; i > 0; i--) {
        for (var j = 0; j < width; ++j) {
          correct_Data[(height - i - 1) * width + j] = inverted_Data[i * width + j]
        }
      }
      for (var i = 0; i < correct_Data.length; ++i) {
        command.push(correct_Data[i])
      }
    }

    jpPrinter.setPagePrint = function() { //打印页面
      data = "PRINT 1,1\r\n"
      jpPrinter.addCommand(data)
    };
    //获取打印数据
    jpPrinter.getData = function() {
      return command;
    };　　
    return jpPrinter;　
  }
};

module.exports.jpPrinter = jpPrinter;